Captain Granit shook his head. "Water fights back. That's and drag ."
Captain Granit smiled. "Good. Let’s start with , young navigator." 1. Energy – The invisible currency "The chest at the bottom has potential energy because it’s deep," the captain explained. "But we need to give it kinetic energy to move it up." np fysik åk 9
Slowly, the chest rose. When it broke the surface, Milo gasped. "It worked!" Captain Granit shook his head
"I know exactly where a sunken treasure chest is," he said, pointing to a rusty anchor. "But the winch is broken. We need to lift the chest from the seabed. It's 50 meters down and weighs 200 kg." "But we need to give it kinetic energy to move it up
Milo groaned. "That sounds like a physics problem. I'm out."
Alva’s eyes lit up. "Wait, this is real physics. Let me think."